mojo leveldb: Get profile and leveldb connected to DOMStorageContext.

components/profile_service/profile_app.cc

 // Copyright 2016 The Chromium Authors. All rights reserved.
 // Use of this source code is governed by a BSD-style license that can be
 // found in the LICENSE file.
 
 #include "components/profile_service/profile_app.h"
 
 #include "base/lazy_instance.h"
-#include "components/leveldb/leveldb_service_impl.h"
 #include "components/profile_service/profile_service_impl.h"
 #include "mojo/shell/public/cpp/connection.h"
 
 namespace profile {
 
 namespace {
 
 base::LazyInstance<std::map<uint32_t, base::FilePath>> g_user_id_to_data_dir =
     LAZY_INSTANCE_INITIALIZER;
 
 }  // namespace
 
 scoped_ptr<mojo::ShellClient> CreateProfileApp() {
   return make_scoped_ptr(new ProfileApp);
 }
 
 ProfileApp::ProfileApp()
-    : lock_table_(new filesystem::LockTable) {
+    : lock_table_(new filesystem::LockTable),
+      profiles_outstanding_(0) {
 }
 
 ProfileApp::~ProfileApp() {}
 
 // static
 void ProfileApp::AssociateMojoUserIDWithProfileDir(
     uint32_t user_id,
     const base::FilePath& profile_data_dir) {
   g_user_id_to_data_dir.Get()[user_id] = profile_data_dir;
 }
 
+void ProfileApp::OnProfileServiceDestroyed() {
+  profiles_outstanding_--;
+  if (profiles_outstanding_ == 0)
+    base::MessageLoop::current()->QuitNow();

[Ben Goodger (Google), 2016/03/04 20:50:49]

you can also use mojo/shell/public/cpp/message_loop_ref.h for this.

[Elliot Glaysher, 2016/03/10 21:00:35]

Done. (Here and in leveldb.)

+}
+
 void ProfileApp::Initialize(mojo::Connector* connector,
                             const std::string& url,
                             uint32_t id,
                             uint32_t user_id) {
   tracing_.Initialize(connector, url);
-  leveldb_service_.reset(new leveldb::LevelDBServiceImpl);
 
   auto it = g_user_id_to_data_dir.Get().find(user_id);
   DCHECK(it != g_user_id_to_data_dir.Get().end());
   profile_data_dir_ = it->second;
 }
 
 bool ProfileApp::AcceptConnection(mojo::Connection* connection) {
-  connection->AddInterface<leveldb::LevelDBService>(this);
   connection->AddInterface<ProfileService>(this);
   return true;
 }
 
 void ProfileApp::Create(mojo::Connection* connection,
                         mojo::InterfaceRequest<ProfileService> request) {
-  // No, we need one of these per connection.
+  profiles_outstanding_++;
   new ProfileServiceImpl(connection,
                          std::move(request),
+                         base::Bind(&ProfileApp::OnProfileServiceDestroyed,
+                                    base::Unretained(this)),
                          profile_data_dir_,
                          lock_table_.get());
 }
 
-void ProfileApp::Create(
-    mojo::Connection* connection,
-    mojo::InterfaceRequest<leveldb::LevelDBService> request) {
-  leveldb_bindings_.AddBinding(leveldb_service_.get(), std::move(request));
-}
-
 }  // namespace profile